in reply to 500 internal server error !!
It's using Error, which IMHO is not so nice module, even you have to be careful about the ';'.
There is no Extraterrestrial life
There aren't any suitably capable Extraterrestrials
Interstellar travel is too difficult
We're too uncool / not worth the trouble
What do you mean they haven't visited?
Results (542 votes). Check out past polls.